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KMID : 0362720190570080448
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Journal of the Korean Dental Association
2019 Volume.57 No. 8 p.448 ~ p.455
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Analysis of Error Source in Subjective Evaluation on Patient Dentist Interaction : Application of Generalizability Theory
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Kim Joo-Ah
Cho Lee-Ra
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Abstract
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This study aims to apply the Generalizability Theory (G-theory) for estimation of reliability of evaluation scores between raters on Patient Dentist Interaction. Selecting a number of raters as multiple error sources, this study was analyzed the error sources caused by relative magnitude of error variances of interaction between the factors and proceeded with D-study based on the results of G-study for optimal determination of measurement condition. The estimated outcomes of variance component for accuracy among the Patient Dentist Interaction evaluation with G-theory showed that impact of error was the biggest influence factor in students. The second influence was the item effect, and the rater effect was relatively small. The Generalizability coefficients for case1 and case2 which were estimated through the D- study were calculated relatively low.
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KEYWORD
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Generalizability Theory, Patient Dentist Interaction, Variance Component, Reliability
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